Personalized I Think Therefore I'm A Nurse Long Sleeve T-Shirt. I Think Therefore I'm A Nurse. It takes brains as well as heart to be a nurse. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL